Reaming attachment for pipe-cutting machines.



E. M. BUGKIUS.

BEAMING ATTACHMENT FOR PIPE CUTTING MACHINES. urmonmn nun JULY 14. 1903.

922,082. Patented May 18,1909.

A E T r l 0 is o s Q \s l/ i1 I 12 [)2 ven tor:

W W% 6M UNITED STATES PATENT OFFICE.

" EDWARD M, BUCKIUS, OF LOS ANGELES, CALIFORNIA.

REAMIN G ATTACHMENT FOR PIPE-CUTTING MACHINES.

To all whom it may concern:

Be it known that I, EDWARD M. BnoKiUs, a citizen of the United States, residing at Los An eles, lalifornia, have invented a new an useful Reainin Attachment for Pipe-Cutting Machines, 0 which the following is a specification.

This attachment is intended to take the bur ofi' from the inside of a pipe after the pipe has been cut in two.

An object of the invention is to provide a pipe-reaming attachment which when not in use, may be moved more completely out of the way of the workmen than are similar attachments hitherto known.

Another object of the invention is to provide an improved means for holding the reaming knife firml and evenly against the inner edge of a pipe during the rotation thereof.

A further object of the invention is to provide an attachment of the character set forth capable of being operated in a more nearly automatic manner than other devices of its class, and capable of embracing pipe of all sizes within the range of the machine to which the invention is attached.

With the above objects in view, the invention consists in the various combinations, sub-combinations and details of construction illustrated in the accompanyin drawings and s ecifically ointed out in t e claims.

Re erring to tie accompanyin drawings which illustrate the inventioii, ignre 1 is an end elevation of a portion of a pi e-cutting machine provided with the attac meiit. Fig. 2 is a plan section on line X of Fig. 1. Fig. 3 is a side elevation looking from eft toward the rightof F i s. 1 and 2.

The pipe 1 is rotate by an well known means, as for example. a. head 2, having a spindle 2 driven by a belt or other means 7 (not shown). Said pipe may be centered in its movements between stationary ]aw 3 and movable jaw 3. said movable jaw 3 being operated in a well known manner by shaft 4, having means (not shown) for manual rotation. The usual pipe-cutting knife 5 carried by block 6 is reciprocated by screw 7 operated by hand wheel 8.

Referring now to the parts which constitute the reaming attachment. a knife-carrying arm 9 is pivoted at 10 to a member 11. sliding in guiding means 12. Said arm 9 near its free end ('ul'l'les a bui rcuioving Specification of Letters Patent.

Application filed July 14, 190B.

Patented May 18, 1909.

Serial No. 443,546.

15 having cars 16 at its outer cud. Knifecarrying member 6 may carry a yoke i? having shoi'ilders 17' adapted to embrace neck 15. Shoulders or lugs 17' are provided with recesses .18 which receive the ears 16 when the arm 9 is swung fully to the o erativc osition and the block 6 then wit idrawu. he slots 1b which are best shown in Fig. 3. will, after the operation just described, receive the cars 16 and lock the arm 8 in the operative position against swinging outwardly if the block 6 is withdrawn sutlicieiitly to bring the reaming knife 14 into contact with the inner edge of the adjacent side of the pipe being operated upon, so that the ear 16 cannot then escape from the recess 18.

In operation, after pipe 1, which is rotated by means of head 2 is cut in two by knife 5, arm 9 is swung in to operative position to bring ears 1G to the left of oke 17, the osition shown in Fig. 1. Tien, while the wife 5 carried by block 6 is withdrawn from the pipe in the usual manner, yoke 17 also carried byblock 6, engages ears 16 and slides arm 9 longitudinally toward the left thereby drawing knife 1+ completely into operative position against the bur on the inner edge of the pipe, said bur being removed by further rotation of the pipe.

It will be seen that the means operated by liandwheel 8 simultaneously witidraw the )l -cutting knife and move the reaming knife bodily to operative posit ion. When the pivoted arm 9 is swung inwardly, the outer side of the inclined reaming knife 14 carried thereby, may be made to strike againstv the end of cutting knife 5 just before the free end of arm 9 strikes yoke 17. This will slide arm 9 and block 11 to the right, causing ears .16 to enter recesses 18 of the traction means operated by handwlicel s. When the reaming knife is not in use. slidable member 11 may be moved to the ri lit. and arm 9 and knife 14 swung complete y out of the way as indicated by dotted lines "I Fig. 2.

- I claim:

1. The combination, with means for ro tating'a pipe, of a slidable member, means to support said member and guide the movellO meat thereof. an arm pivotally mounted on said member. a pipe-reaming knife carried by said arm. and means at one side of the t tatmg a Jipe. of a slidable member. means pipe being operated upon adapted to couple on to the free end of said arm when in operative position to draw said arm toward that side of the pipe.

2. In combination. means for rotating a pipe. a member adapted to carry a pipe cuttltlg knife. means for moving said member member on the other side of the pipe at apted to slide toward and from the pipe, guidtuward and from one side of the pi e. a

ing means for said slidable member. an arm pivoted to said slidable member. and a pipereaming knife carried by said arm, the first named member being adapted to couple on to the free end of said arm.

3. In combination. means for rotating apipe. a member adapted to carry a pipe cutting knife. means for moving said member toward and from one side of the pi e, a n-iember on the other side of the pipe at apted to slide toward and from the pipe. guidin means for said slidable member. an arm pivoted to said slidable member, and a pipereaming knife carried by said arm. said arm being provided with an ear at its free end. and the first named member being provided with a lug 17' adapted. to engage outside of said ear when said arm is in the operative position.

4. The combination. with means for r0 at one si e of the pipe to support said mem- 1 her and guide the movement thereof, an arm pivotally mounted on said member, a pipereaming knife carried by said arm, and means at the other side of the pipe for moving said arm longitudinally to bring said reaming-knife into operative position.

5. In pipe cutting and reaming apparatus, a carriage adapted to support a. cutting knife, a reaming knife, an independent carriage adapted to support said reaming knife, means for coupling said carriages together, and means operatively connected with the 'arriage for supporting the cuttin knife to simultaneously withdraw the cutting knife and move said reaming knife into operative position.

In testimony whereof I have hereunto signed my name in the resence of two subscribing witnesses at 0s Angeles, in the county of Los Angeles and State of California. this ninth day of July 1908.

ED\VARD M. BUCKIUS.

Witnesses Jonx M. Your, ALBERT H. MERRILL. 

